Device for treating bobbins



June 18, 1957 W..STUTZ DEVICE FOR TREATING BOBBINS Filed Dec. 29, 1954DEVICE FOR TREATING BOBBINS Waiter Stutz, Kempten, near Wetzikon,Switzerland, assignor to Stutz & Cie, Kempten, near Wetzikon,Switzerland Application December 29, 1954, Serial No. 478,443 3 Claims.(Cl. 164-47 The present invention relates to a device for treatingbobbins, and more particularly those bobbins which are to be led to acleaning machine in order to have their thread waste removed.

As is well known there is always a waste left on the bobbins ejected byautomatic looms. Such waste is usually removed in a so-called cleaningmachine, to which the bobbins to be treated are fed in relatively largenumber per time unit. Preferably the bobbins, ejected from the looms andcollected for example in a small carriage, are poured into a transportcontainer and fed by the latter to the cleaning machine. Now during suchhandling of the bobbins entanglement of the ends of the thread wastes isinevitable. The thus interconnected bobbins must be separated in orderto be correctly treated, this separation having heretofore been effectedby pulling apart the entangled bobbins.

The present invention aims to avoid this time-wasting hand-work. Forthis purpose the invention provides a device for treating bobbins,destined to be fed to a cleaning machine for removal of the threadwaste, comprising a guiding chute adapted to receive the bobbins, saidchute having a cutting device for separating bobbins connected to eachother by entanglement of their thread waste.

Other advantages and features of the invention will become apparent fromthe description now to follow, of two preferred embodiments thereof,given by way of example only, and in which reference will be made to theaccompanying drawings, in which:

Fig. 1 is an elevational view of the first embodiment;

Fig. 2 is a partial side elevation to Fig. 1;

Fig. 3 is an elevational view of the second embodiment, and

Fig. 4 is a top view of the embodiment shown in Fig. 3.

In the first embodiment an inclined guiding groove or chute 1, of whichonly the lower portion is represented in Fig. l, is connected to a notrepresented bobbin catcher. This guiding groove or chute 1 is notrepresented in Fig. 2. On the inclined bottom 2 of the chute, thebobbins glide towards a distributor device 3 (see also Figs. 3 and 4) bywhich the bobbins coming from the said catcher are separated into atleast two streams. The distance between the two sidewalls of the chute,is smaller at the lower end portion of the chute, than it is in theupper portion of the chute. The bottom 2 of the chute is provided at thelower end portion thereof with a slot 4 providing for the passage of acircular cutting disk 5. This disk is rotated by a motor 7 through abelt 6. Reference numeral 8 designates a support for the cutting deviceconstituted by the motor 7, the belt driving 6 and the cutter 5. Asafety cover 9 provided in the chute 1 encloses a large part of thecutter portion projecting into the latter, leaving free the slot 4 atthe side facing the oncoming bobbins only. As visible from Fig. 2 thesubstantially flat safety cover 9 forms an innited States Patent O2,196,126 Patented June 18, 1957 clined guiding surface. By theprovision of the safety cover 9 it is avoided that the holding ringsprovided at the thickened end of the bobbin or the point thereof comeinto contact with the cutting disk. Likewise accidental touching of thecutter with the hands is effectively prevented. The thread waste,however, is pulled towards the cutter 5 in the zone of'the upper endportion of slot 4 and cut so that the desired separation of theentangled bobbins is attained.

The embodiment illustrated in Figs. 3 and 4 differs from theaforedescribed example in several respects. In this second embodiment avertical guiding 10 is provided in the chute 1, said guiding 10 housinga straight, toothed cutter 11 supported by its back and two sides in theguiding 10. The cutter 11 is connected by its lower end by means of anarm 12 to an eccentric tap of a driven disk 13 so that an up-and-downmovement is imparted to the cutter when the disk 13 rotates. Referencenumeral 9 designates again a protective cover provided in the chute 1,this cover enclosing the larger part of the cutter but leaving free theupper end portion of the slot 4 in the bottom of the chute so that thethread waste may come into contact with the cutter. Reference numeral 14designates the bobbin catcher, the bottom of which is constituted by theupper surface of an endless conveyor belt 15 a portion of which alsoserves as a movable bottom for the chute 1, in contradistinction to theembodiment of Figs. 1 and 2 in which the bottom 2 of the chute isstationary. The conveyor belt 15 passes over two rollers 16 and 17connected by a belt driving 18 operable by a hand wheel 19. Referencenumeral 20 designates supporting rolls provided on the carrying side ofthe conveyor belt 15 and supported on the frame 21 of the catcher 14. Bycorresponding rotation of the hand wheel 19 it is possible to move theconveyor belt 15 so that it feeds bobbins towards the cutter 11.

The cutting device could also be provided with several cutters insteadof one as illustrated in the foregoing embodiments. The rotationalcutting disk could also be replaced by a to-and-fro swinging cuttingdisk or scissors-like or knife-like cutting devices could be provided.The bottom of the chute 1 could be arranged to be movable in the feeddirection of the bobbins over its whole length instead of over a portionthereof only, as in the second embodiment.

I claim:

1. In a device for treating bobbins destined to be fed to a cleaningmachine for removal of the thread waste, the provision of a guidingchute have an inclined bottom and a discharge portion of a smaller widthto provide a restricted pathway, a slot in said bottom arrangedcentrally of said restricted pathway, a cutting device partly projectingthrough said slot for cutting the thread waste of bobbins entangled bythe thread waste, a protective cover partly enclosing the portion of thecutting device projecting into said chute and leaving free the slot onits end facing the oncoming bobbins and having its opposite endconstituted as a guiding surface, said protective cover being mountedcentrally of said restricted pathway such that bobbins will pass alongopposite sides thereof.

2. In a device for treating bobbins destined to be fed to a cleaningmachine for removal of the thread waste, the provision of a guidingchute having an inclined bottom movable in direction of feed of thebobbins at least over a portion of its length, said chute being providedwith a small discharge portion providing a restricted throat, a slot insaid bottom, a cutting device device projecting into said chute andleaving free the slot on its end facing the oncoming bobbins and havingitsppposite endjconstituted as a guiding surface; said cutting deviceand protective cover being arranged centrally of saidrestrictedthroatsuch that bobbins will pass therethrough on oppositesides: of said cuttingdevice. 3. In a device-for treating bobbinsdestined to be fed to a cleaning machine for removal of the threadwaste, the provision of a guiding chute having a slot in its bottom andprovided with a small discharge portion providing a restricted pathway,a cutting device having at least one movable cutting member partlyprojecting through said slot for cutting the thread waste of bobbinsentangled by the thread waste, a protective cover partly enclosing theportion of the cutting device projectinginto said chute and leaving freethe slot on itsend facing the oncoming bobbins and having its oppositeend constituted 4 as a guiding surface, said cutting device andprotective cover being mounted centrally of said restricted pathway suchthat bobbins will pass downwardly on opposite sides thereof and theentangling threads will pass along the base of said protecting covertobe engaged by said cutting device.

References Cited in the file of this patent UNITED STATES PATENTS1,081,914 Ramsey Dec. 16, 1913 1,424,472 Goldberg Aug. 1, 1922 2,070,193Alderman Feb. 9, 1937 2,482,854 Lindsay Sept. 27, 1949 2,574,087 BurhansNov. 6, 1951 2,608,973 Coons Sept. 2, 1952

